Sugar Loaf Island (Greenlandic: Uummannaq, old spelling: Ũmánaq) is a small, uninhabited island in the Qaasuitsup municipality in northwestern Greenland. The island is a single flooded mountain of 376 m (1,234 ft).[1] Its name means "heart-shaped" in the Greenlandic language. The island is an important landmark in the region often afflicted by fog, and is used for coastal boat navigation.